1 files changed, 43 insertions, 0 deletions
diff --git a/newlib/libc/argz/envz_add.c b/newlib/libc/argz/envz_add.c
new file mode 100644
index 000000000..75fba66ed
--- /dev/null
+++ b/newlib/libc/argz/envz_add.c
@@ -0,0 +1,43 @@
+/* Copyright (C) 2002 by  Red Hat, Incorporated. All rights reserved.
+ *
+ * Permission to use, copy, modify, and distribute this software
+ * is freely granted, provided that this notice is preserved.
+ */
+
+#include <errno.h>
+#include <sys/types.h>
+#include <string.h>
+#include <stdlib.h>
+#include <argz.h>
+#include <envz.h>
+
+error_t
+envz_add (char **envz, size_t *envz_len, const char *name, const char *value)
+{
+  char *concat = NULL;
+  int name_len = 0;
+  int val_len = 0;
+  int retval = 0;
+
+  envz_remove(envz, envz_len, name);
+
+  if (value)
+    {
+      name_len = strlen(name);
+      val_len = strlen(value);
+      if(!(concat = (char *) malloc(name_len + val_len + 2)))
+        return ENOMEM;
+
+      memcpy(concat, name, name_len);
+      concat[name_len] = '=';
+      memcpy(concat + name_len + 1, value, val_len + 1);
+
+      retval = argz_add(envz, envz_len, concat);
+      free(concat);
+    }
+  else
+    {
+      retval = argz_add(envz, envz_len, name);
+    }
+  return retval;
+}